/*
 * Copyright (c) 2012, Tony Houghton <h@realh.co.uk>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

// HGame - a simple cross-platform game framework

#include "hgame/RenderContext.h"

namespace hgame {

int RenderContext::smIndex = 0;

RenderContext::RenderContext(Log *log) :
        mBoundTexture(0), mNeedScaling(false), mIndex(++smIndex), mLog(*log)
{
}

RenderContext::~RenderContext()
{
}

int RenderContext::calculateTileSize(int w, int h)
{
    double scrn_w = (double) getWidth();
    double scrn_h = (double) getHeight();
    double src_aspect = (double) w / (double) h;
    double scrn_aspect = scrn_w / scrn_h;
    int result;
    if (scrn_aspect >= src_aspect)
        result = (int) (scrn_h / (double) h);
    else
        result = (int) (scrn_w / (double) w);
    mLog.d("Screen size is %dx%d, tile size is %d",
            (int) scrn_w, (int) scrn_h, result);
    return result;
}

}
